Bolt anchor



@et 9, w23. v 1,469,950

` R. E. OGDEN BOLT ANCHOR v Filed Aug. 9, 1921 /7 Fal/19kg Qgaen, @5% www,

' T 0 aZZlw/imn t may concern:

Patented ct. 9, 1923.V

naires erases raisery orriosffj RALPH n.V OGDEN, or raoUNTAiNvI'L-LE, NEW YORK, assigner. To 'rnnonsnnn coin-'I PANY, `ino., A CORPORATION."

BOLT ANCHOR.

Application f iiea August 9, 192i. seriai No. 490,859.

, Be it known thatv I, RALPH E. OcDnN, a citizen oit the United States, and a resident oi Mountainville, lrange'County, and State ot New Yorlg'have invented certain new'and useful improvements in Bolt Anchors, of

whichthe following is a specification.

This invention i'ela'tes'to bolt anchors-and more particularly to anchors or". the character employed in'walls -o'f brick, stoneA or cementitious material, not adapted to directly receive a threaded bolt. One of the objects of this inventionis to' 'provide an expansion shield that may be economically manufactured. l

Another object of the invention is to provide an expansion shield and a nut for expanding the shield, having intereiigaging parts whereby the nut will be guided 1n its Y at 16.

movement by Vthe shield.. 1

Further objects will appear as the descripv tion proceeds.

Theabove objects are attainedgin the ein bodinient of the invention illustrated by an expansionA shield formed` from sheet metal stampings secured together preferably ad#V iacent one end by spot welding. The shield as a plurality of fingers at one end, each j finger having its edges 'substantially parallel, and the fingers being spaced equal distances from the axis of the shield and substantially is alinenicnt with-'the main portion of the shield.` The ends of the lingers are bent iii'- wardlv toward the axis oi: the shield. The

nut for expanding the shield has groores with parallel edges, the grooves receiving the fingers whereby the nut will be guided in its movement. intermediate the groove the nut has taperedor wedge shaped surfaces adapted to engage the expansible portions of the shield as the nut is moved longitudinally o the bolt. A

Referring to the drawings,

Fig. 1 is a sectional elevation of a portion of a wall having an opening therein and having a holt anchor constructed in accordance with the invention expanded in the opening.

Fig 2 isa sectional elevation of thefbolt anchor with the shield shownbefore expan the shield shown in Fig. 3.'

Fig.v 5 -an elevation ot theopposite vendu Ofiii Shield Shown' in Fig.-A e;

Figs. 6, 7y and'gS are sectional-elevations. taken substantially onlines (5f-e6, and

-' in connection'with the expansion'shield.A

The expansion shield isipreferably made uplot aplurality of sections 10 formed :from

shield are longitdinaly' slotted aspshown atV 12 and adjacent their ends are providedwith longitudinally extending fingers or tines113, The ii'ngers 13 Vh ave parallel edgesletl and at y'their free ends are turned inwardly las shownv at 15 A.toward the axis ofi the shield, n

the extreme ends being' taperedas sho-wn The nut for expanding theshield is provided, as shown particularly in Fig. 9, With alplurality o flongitudinal grooves 17, theV walls or sides of these grooves being parallel toy each other. VThe grooves aresuitably spaced around the nut: to receive theiingers 13 ,and vthe .surfaces of lthe grooves aredis-y posed equi-distantly from the axis of thenut or in a common cylinder. Intermediatethe grooves 17 thenut has ormed thereon infY clined or tapered.- portions 18' having their outerv surfaces preferablydisposed in @100mmon cone. The portions 18 iiornifwedgesfor expanding the shield aswhereinafter described. The nut is provided with a longitudinal screw-threaded bore for y.receiving a bolt 19 by means of which an object 2O may be secured to the wall 21 of the building structure. y i

The 'bolt anchor above described operates as follows; assuming that the bolt 19 has been passed through' av suitable opening in the object 2O the'end of the bolt is threaded into the nut as shown in Fig. 2 and the anchor is then inserted in the opening inthe wall 21. Upon the initial rotation of the bolt 19, the end of the bolt will abut against the ends 15 of thelingers lythereby feeding the nut longitudinallyv on the bolt. As the nut is fed on' the bolt the wedge shaped portions 18 ofthe nut will engage the portions of the shield lbetween the slots A12 thereby expanding the shield as shown in Fig. 1 into contact with the wall of thel structure 21.

As the nut moves along Athe bolt it is guided o for holding the sections together areV too Weak to-interfere with'the' operation of 'eX- pansion. Y Y Y j i vAlthough"one specificjeinbodiment ofthe inventionhasbeen illustrated and described, it Will be understood that the Ainvention is `Capable oi .Inoditieation and thatehanges in a theconstruetion and inthe' arrangement ot the vvarious Cooperating parts Vmay be'made Yreceiving said fingers;

l Without departing troni' thev spirit or' scope of 'the inventionE as expessed'in the follow# ing claims. 1 1: Y ci' Y What AI elaineis:

'1. 4In Combination, an 'expansion shield hayingl aplnrality' of longitudinally 'eX-.-

' tending lingers withT 'their-*edges* substan-lv tially parallel'and a' nut forexpanding said` shield havinggr'ooves with parallel Walls for Q'fln 'co1nbii'iatlion-,v4 van? expansion shield having a plurality jofI longitudinally extendinglingers vwith their edges substantially parallel'andl anut tor'expandingsaid shield havinggrooves with parallelv Walls` tor receiving` said"ling'fe'rs,y the portions of the nut interinediatethe grooves` beingY tapered for expanding theshieldLfA A f- 3. In: combination; VanI expansion shield having a plurality of longitudinally extend# Y ing fingers With their edges substantiallyv parallela'nda nut for expanding said shield" Y' having' grooves with parallel Wallsv for rel A havin nhg-ers' ceiving said lingers,"thergrooved portions of the nut laine' in a c linder and the inters z: ,Y

n'iediateportions lying in acone.

hin combination, an expansion shield slotted longitudinally and having lingers formingv the inner end portion of the shield, anda nut having grooves lor receiving said lingers and having portions ior expanding said shield. y

ln combination, an ezioansion shield slotted longitudinally and having fingers forming the inner end poiionV of theshield, said fingers beingintnrned attheir ends, and a nut hzwing` grooves forr reeeivingsaid iingers and having portions for expanding Vsaid shield; i i

f5. Ein expansion shield having longitul dinal slots ez\:tenling` toward the outerpend of the shield troni the inner end thereof and v extending i'roinlthe portions ofthe shield between the slots therein; Y Y y Y p I `7. An expansion shield having longitudinal slots'extending tmvardythe'outer end t the shield from the inner end thereof and having fingers extending longitudinally from ythe portions of the sh'iell-hetween t'he slfots thereinand' intuined at their ends.

8. A not for expanding a shield, said nut being rnstdoonical in shape and" having longitudinal groei/es therein iviththeir Walls substantially parallel'. y

9. In combination, a seetionaleXpjansion shield having longit'udinally extending'tingers adjacent one 1end of the shieldandlbent' inwardly at` Ytheir ends, a .nutihavingf cut Way vportions receiving Vsaid fingerstherein and1 means connecting the shieldseotions adj'aeenttheir opposite ends. n f i' ln Witness'whereof,Y Ifliave hereunto set lmy hand this 5th day of July; 1921".V

longitudinally 

